Reducing the huge gap between the mainmenu and the slideshow

Hello,
How can I reduce the gap between the main menu and the slide show as shown in the illustration attached?
By the way, here is the URL for the site: http://192.185.154.194/~a2z/
Thank you for your prompt reply!
Kind regards...

Please edit: /templates/gk_shop_and_buy/css/override.css and add at its end:

Code: Select all

#gkHeaderMod {
margin-top: 20px !important;
}


Remember to enable "CSS override" in template settings - advanced section.